Last week I purchased a Cateye Astrale 8 cyclocomputer based on recommendations I've seen from this board and elsewhere. Installation was easy enough, I had to short circuit the computer to get it to recognize the MPH/Distance portion for some reason, but after that it worked fine.
Yesterday it was acting up, occasionally reading 5, 6 mph while I was definitly going faster then that. It'd pop back up to real speeds (14, 15, etc) after a bit, but it'd still occasionally show that. This morning the cadence section worked, but the MPH/Distance would not work no matter what I did. When I got to work I short circuited the computer again, but it made no difference (the screen did flash briefly, the max mph now is listed at 5.2 even though it never showed that any other time).
I have two questions:
1) Is this most likely a faulty rear sensor? I can not locate any broken wires or the like.
2) The instruction state that the rear sensor and the spoke magnet should be no more then 5 mm apart. Before, when it was working, the sensors were a tad bit more then that, maybe 7mm apart. However, things worked. Could this be a potential issue? The only way I can get the two closer is to move the rear sensor stuff closer to the center of the wheel, but I thought that was a 'no no' as it could lead to inaccurate readings.
My the magnet/sensor is currently lined up on the red line, which is about the center of the spokes. This is where I was told it would receive the 'best readings' since it was in the center.
To get it closer to 5mm I'd have to move it to the green line. This is where I thought that I'd get poor readings.
Regarding the second question: Was I misinformed?
Thanks for any help